St. Pete-Clearwater International to Boeing Fld/King County International PIE → BFI
2,185 nautical miles (2,515 statute miles) northwest on a straight line, true course 313°, about 318° magnetic at the departure end (variation 5W). At 120 knots that is 19 h 20 min at the quickest height in today's winds (16,500 ft, a 7-knot headwind), arriving about 2:31 am PDT (09:31 UTC), after sunset at the destination. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 1 flights in the DOT's last twelve reported months, the route's page.
The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words
Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.
Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of
- AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 838 to 1058 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 1267 to 1467 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 1387 to 1417 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1467 to 2016 nm out.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1477 to 1816 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1507 to 1776 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 1796 to 2016 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 1866 to 2136 nm out.
A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from PIE.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 UTC · at 120 knots true airspeed
The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 17 forecast points nearest it (PIE, TLH, MGM, JAN, MEM, LIT, FSM, TUL, ICT, SLN, GLD, BFF, LND, DLN, LWS, YKM, SEA). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 260° at 10 kt | +8 kt | 112 kt | 19 h 31 min | 2:42 am PDT (09:42 UTC) | |
| 6,500 ft | 270° at 13 kt | +10 kt | 13 °C | 110 kt | 19 h 52 min | 3:03 am PDT (10:03 UTC) |
| 8,500 ft | 260° at 12 kt | +9 kt | 7 °C | 111 kt | 19 h 41 min | 2:52 am PDT (09:52 UTC) |
| 10,500 ft | 260° at 13 kt | +9 kt | 4 °C | 111 kt | 19 h 41 min | 2:52 am PDT (09:52 UTC) |
| 12,500 ft | 250° at 14 kt | +8 kt | 1 °C | 112 kt | 19 h 31 min | 2:42 am PDT (09:42 UTC) |
| 14,500 ft | 250° at 14 kt | +8 kt | -3 °C | 112 kt | 19 h 31 min | 2:42 am PDT (09:42 UTC) |
| 16,500 ft | 240° at 14 kt | +7 kt | -7 °C | 113 kt | 19 h 20 min | 2:31 am PDT (09:31 UTC) |
| 18,000 ft FL180 | 240° at 14 kt | +7 kt | -11 °C | 113 kt | 19 h 20 min | 2:31 am PDT (09:31 UTC) |
| 24,000 ft FL240 | 250° at 21 kt | +12 kt | -22 °C | 108 kt | 20 h 14 min | 3:25 am PDT (10:25 UTC) |
| 30,000 ft FL300 | 270° at 34 kt | +28 kt | -32 °C | 92 kt | 23 h 45 min | 6:56 am PDT (13:56 UTC) |
| 34,000 ft FL340 | 270° at 34 kt | +28 kt | -38 °C | 92 kt | 23 h 45 min | 6:56 am PDT (13:56 UTC) |
| 39,000 ft FL390 | 270° at 33 kt | +28 kt | -47 °C | 92 kt | 23 h 45 min | 6:56 am PDT (13:56 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.
The forecast points as issued
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| PIE | used from 0 nm out; 25 nm from the line | 360/14 | 010/20 18° | 320/11 13° | 290/16 8° | 340/11 -6° | 350/21 -17° | 360/39 -32° | 010/39 -42° | 350/17 -50° |
| TLH | used from 100 nm out; 64 nm from the line | 360/24 | 350/19 18° | 340/18 11° | 320/14 6° | 360/12 -5° | 350/21 -17° | 350/29 -32° | 360/34 -41° | 340/33 -53° |
| MGM | used from 249 nm out; 79 nm from the line | 350/14 | 320/18 17° | 320/17 11° | 300/14 5° | 330/13 -5° | 310/12 -17° | 330/29 -30° | 340/40 -40° | 350/32 -50° |
| JAN | used from 399 nm out; 69 nm from the line | 210/8 | 230/13 18° | 240/10 11° | 260/11 6° | 280/16 -5° | 260/12 -15° | 330/34 -30° | 320/39 -40° | 340/34 -51° |
| MEM | used from 499 nm out; 82 nm from the line | 240/14 | 260/23 16° | 250/22 11° | 250/20 7° | 270/24 -6° | 270/27 -16° | 310/49 -30° | 310/46 -39° | 320/43 -50° |
| LIT | used from 549 nm out; 65 nm from the line | 230/23 | 250/23 17° | 250/18 11° | 250/18 7° | 250/27 -7° | 270/23 -15° | 290/50 -30° | 300/43 -38° | 320/38 -50° |
| FSM | used from 699 nm out; 52 nm from the line | 210/15 | 230/31 18° | 230/26 12° | 240/22 8° | 260/26 -6° | 270/29 -16° | 280/56 -29° | 290/47 -37° | 310/41 -50° |
| TUL | used from 798 nm out; 52 nm from the line | 210/24 | 220/29 18° | 240/17 14° | 250/16 8° | 260/28 -6° | 260/36 -18° | 270/63 -28° | 280/54 -37° | 290/46 -49° |
| ICT | used from 898 nm out; 32 nm from the line | 200/26 | 240/31 21° | 230/30 14° | 240/30 7° | 250/38 -8° | 240/49 -19° | 260/73 -27° | 270/69 -37° | 270/63 -48° |
| SLN | used from 948 nm out; 32 nm from the line | 210/26 | 250/36 22° | 240/39 14° | 240/38 7° | 240/42 -9° | 240/49 -20° | 260/75 -27° | 260/76 -36° | 270/71 -48° |
| GLD | used from 1098 nm out; 68 nm from the line | 240/22 | 250/24 13° | 250/39 6° | 230/42 -8° | 230/55 -21° | 240/87 -30° | 240/96 -36° | 250/93 -48° | |
| BFF | used from 1247 nm out; 58 nm from the line | 310/15 | 280/27 8° | 250/27 2° | 230/30 -12° | 240/52 -22° | 250/66 -32° | 240/78 -37° | 240/76 -43° | |
| LND | used from 1447 nm out; 82 nm from the line | 220/16 3° | 230/26 -1° | 210/30 -14° | 220/57 -26° | 220/60 -31° | 220/62 -38° | 220/52 -44° | ||
| DLN | used from 1647 nm out; 92 nm from the line | L/V -3° | 170/16 -6° | 180/21 -18° | 190/27 -30° | 210/63 -33° | 210/62 -36° | 210/51 -42° | ||
| LWS | used from 1846 nm out; 88 nm from the line | L/V | L/V -2° | 030/6 -5° | 050/10 -10° | 110/19 -21° | 150/22 -31° | 130/11 -36° | 200/6 -37° | 220/21 -40° |
| YKM | used from 2046 nm out; 42 nm from the line | L/V | 350/9 0° | 040/20 -5° | 030/23 -8° | 020/41 -18° | 010/74 -27° | 010/73 -40° | 020/54 -44° | 350/9 -43° |
| SEA | used from 2146 nm out; 19 nm from the line | L/V | L/V 1° | 020/13 -2° | 020/27 -4° | 010/43 -14° | 360/54 -26° | 360/63 -40° | 010/60 -48° | 350/39 -50° |
The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| PIE St Petersburg-Clearwater, FL | departure | no report just now | 10 ft | ||||
| AAF Apalachicola, FL | 160 nm out, 6 nm west of the line | no report just now | 19 ft | ||||
| ECP Panama City, FL | 220 nm out, 3 nm southwest of the line, tower | no report just now | 68 ft | ||||
| GWO Greenwood, MS | 509 nm out, 3 nm southwest of the line, tower | no report just now | 162 ft | ||||
| XNA Fayetteville/Springdale/Rogers, AR | 778 nm out, 4 nm southeast of the line, tower | no report just now | 1,288 ft | ||||
| BEC Wichita, KS | 938 nm out, 16 nm southwest of the line, tower | no report just now | 1,408 ft | ||||
| OIN Oberlin, KS | 1138 nm out, 2 nm north of the line | no report just now | 2,706 ft | ||||
| CPR Casper, WY | 1467 nm out, 20 nm northeast of the line, tower | no report just now | 5,344 ft | ||||
| DUB Dubois, WY | 1607 nm out, 14 nm south of the line | no report just now | 7,298 ft | ||||
| LWS Lewiston, ID | 1956 nm out, 10 nm north of the line, tower | no report just now | 1,442 ft | ||||
| MWH Moses Lake, WA | 2066 nm out, 22 nm northeast of the line, tower | no report just now | 1,188 ft | ||||
| BFI Seattle, WA | destination | no report just now | 21 ft |
The highest airport on this list sits at 7,298 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BFI when you get there the forecast at the estimated arrival, 2:31 am PDT (09:31 UTC)
BFI has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at PIE 7:04 pm EDT (23:04 UTC), at BFI 6:25 pm PDT (01:25 UTC) (civil twilight ends 6:56 pm PDT (01:56 UTC)). At 120 knots the arrival at BFI is before sunrise there (7:24 am PDT (14:24 UTC)).
Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.
Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads
Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: St. Pete-Clearwater International, Boeing Fld/King County International.